The Symptom There are instances where you may encounter an error message that says something like, “The application was unable to start correctly” with an error code of C000007B. There are other error codes where you may see that message, but I’m only going to focus on the STATUS_INVALID_IMAGE_FORMAT C000007B here. In fact, there are more…

It all started with issues in code signing. My client was using Signtool to sign his package and they were getting bunch of errors. The below screen grab shows us the errors. Errors like MakeAppx failed to extract Appx to App.Windows10_0.0.2.0_ARM Ensure AppxManifest and signing cert Publishers name match.. Get-Content:Cannot find path ‘C:\Temp\APPXOutput\App…\AppxManifest.xml’ because it does…

One of my clients came up with a requirement to track down the line of the code immediately when the exception is thrown, note that this is ‘without the use of the debuggers’. My research led me to lot of questions online about this and hence I am trying to write a succinct blog about what…

This case was a good case-in-point of why crashing can sometimes be a good thing – at least it helps you find and fix your bugs! This issue was reported as ‘my application just randomly disappears’. We had the developer run this app under procdump with unhandled exceptions being caught – ‘procdump -ma -e Test.exe’….

I recently helped a developer that needed to enumerate all of the modules in an arbitrary process. They are given a Process ID (PID) and need to enumerate all of the modules, both native and managed that have been loaded by the process. They started by creating a System.Diagnostics.Process object for the given PID with…

Irfan Ahmed, Senior Support Escalation(Languages EMEA team) brings to us this amazing write up in his own words. Read on!! While work on an issue; I came across a requirement where customer is migrating his project from VS2012 IDE to VS2015 IDE. Currently they are migrating only IDE of the project where they are still…

Hello, I am back to my old habits of blogging about some interesting things that we do. So recently we were approached by one of our important partners regarding a Freeze in their Winforms application which was ‘intermittent’. This freeze or hang per say was accompanied with the below exception, Exception: System.ComponentModel.Win32ExceptionMessage: Error creating window handle. …

Prabhat Tandon, Support Escalation Engineer, brings this amazing write up summarising his experience while working with one of his customers. Recently I was troubleshooting an intermittent, hard to reproduce application crash in the production environment. We had a restriction to install debuggers. In such situation, Windows Error Reporting (WER) comes as a handy tool. Here…

Irfan Ahmed, Senior Support Escalation Engineer, brings to us another solution to a unique problem, while working with one of his customers. I have come across this issue where customer has migrated his website from .NET Framework 3.5 to .NET Framework 4.0 and the Web server has .NET Framework 4.5. 1 installed. The web application…

Another nice write up from Senior Support Escalation Engineer, Irfan Ahmed on Visual Studio performance. Visual Studio performance is always a topic in discussion. I was working on a Visual Studio performance issue recently and got to know something which I believe should be shared and hence this blog for you. Hope you will find…